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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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The Korean Journal of Mycology
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Journal DOI :
The Korean Society of Mycology
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Volume & Issues
Volume 43, Issue 4 - Dec 2015
Volume 43, Issue 3 - Sep 2015
Volume 43, Issue 2 - Jun 2015
Volume 43, Issue 1 - Mar 2015
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Cultural Characteristics of Korean Ectomycorrhizal Fungi
Jeon, Sung-Min ; Ka, Kang-Hyeon ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 1~12
DOI : 10.4489/KJM.2015.43.1.1
Many ectomycorrhizal fungi provide delicious foods for humans as symbiotic fungi forming ectomycorrhizas on roots of trees. Korea Forest Research Institute (KFRI) is focused on studying the pure culture, conservation, and fundamental characteristics of ectomycorrhizal fungi as well as their artificial cultivation. In this review, we described the cultural characteristics of many ectomycorrhizal fungi that are preserved in the cold room of KFRI. The aim of this article is to provide basic information that will be useful in investigating good forest resources for any researchers who are interested in this topic.
Diversity of Endophytic Fungi Isolated from Hydrophytes in Wetland of Nakdong River
You, Young-Hyun ; Lee, Myung-Chul ; Kim, Jong-Guk ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 13~19
DOI : 10.4489/KJM.2015.43.1.13
Endophytic fungal strains were isolated from 5 aquatic plant species (Trapa japonica, Miscanthus sacchariflorus, Oenanthe javanica, Typha orientalis and Zizania latifolia) native to river wetland of tributary in Nakdong river. Total 34 strains were purely isolated, and then its internal transcribed spacer (ITS) regions were amplified. After that, phylogenetic analysis based on ITS sequences and deduction of diversity indices were done. Fungal isolates were belonged to 17 genera, concretely in Acremonium, Alternaria, Aspergillus, Cladosporium, Emericellopsis, Fusarium, Galactomyces, Leptosphaeria, Microsphaeropsis, Penicillium, Peyronellaea, Phoma, Pseudeurotium, Rhizomucor, Talaromyces, Trematosphaeria and Zalerion. Especially, fungal isolates were distributed intensively in genera Alternaria and Talaromyces. This study deals with the diversity of endophytic fungal species that showing symbiotic relationship with their host aquatic plants.
Diversity of Endophytic Fungi Isolated from Roots of Cypripedium japonicum and C. macranthum in Korea
Lee, Bong-Hyung ; Han, Han-Kyeol ; Kwon, Hye-Jin ; Eom, Ahn-Heum ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 20~25
DOI : 10.4489/KJM.2015.43.1.20
This study was conducted to investigate diversity of orchid endophytic fungi from roots of two terrestrial orchids, Cypripedium japonicum and Cypripedium macranthum in Korea. The endophytic fungi were identified using morphological and DNA sequences isolated from the roots. Totally, 11 taxa of the endophytic fungi were identified from the roots of C. japonicum and 15 taxa from C. macranthum. Three species of the fungi were common in both host species; Leptodontidium orchidicola, Humicola fuscoatra var. fuscoatra, Umbelopsis dimorpha. Six species of the fungal isolates were the first report in Korea; Oidiodendron echinulatum, Pseudogymnoascus roseus, Geomyces vinaceus, Cryptosporiopsis ericae, U. dimorpha, Chaetomium cupreum.
Cultural Characteristics of New Cultivar of Lentinula edodes, Poongnyunko
Park, Young-Ae ; Bak, Won-Chull ; Koo, Chang-Duck ; Lee, Bong-Hun ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 26~32
DOI : 10.4489/KJM.2015.43.1.26
In this study, a new cultivar of Lentinula edodes was bred from dikaryotic KFRI 490 and monokaryotic KFRI 536 by Di-mon method. The new breed was named "Poongnyunko" and physiological characteristics was investigated. Its optimal growing temperature was
, and it had thin density. Its colony was colorless and did not form any epithelium. On the
day of mycelial growth, "Poongnyunko" was 56.6 mm, and showed higher cellulase activity compared with "Sanlim 4-ho"(52.9 mm). On the
day of mycelial growth, "Poongnyunko" was 58.0 mm, and showed higher laccase activity compared with "Sanlim 4-ho" (55.6 mm). Its pH at a substrate was 6.0. Before cultivation, the pH of sawdust substrate was 4.7-5.5 went down to 3.7-3.9 after 120-day cultivation. After 60 days of cultivation, the change of
was the greatest. During the cultivation,
concentration in a growing bag was 4.67% to 3.90%.
Isolation and Characterization of Two Methyltransferase Genes, AfuvipB and AfuvipC in Aspergillus fumigatus
Elgabbar, Mohammed A. Abdo ; Han, Kap-Hoon ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 33~39
DOI : 10.4489/KJM.2015.43.1.33
In filamentous fungi, velvet complex associated with the veA gene plays pivotal roles in development and secondary metabolism. In a model fungus Aspergillus nidulans, many proteins that can interact with VeA, including two methyltransferases VipB and VipC, have been isolated and characterized. In this study, we isolated homologs of the vipB and vipC genes in the human opportunistic pathogenic fungus Aspergillus fumigatus and named AfuvipB and AfuvipC. The AfuvipB gene, annotated as Afu3g14920 in the Aspergillus Genome Database (AspGD) database, consists of 1,510 bp interrupted with 10 introns yielding 336 amino acid-long putative methyltransferase protein. Similarly, AfuvipC, which is Afu8g01930, has 10 introns and encodes a polypeptide with 339 amino acids having a methyltransferase domain in the middle of the protein. To characterize the function of the genes in A. fumigatus, knock-out mutants were generated and the phenotypes were observed. Deletion of AfuvipB gene caused no obvious phenotypic change on point inoculation but showed smaller colony than wild-type when the mutant was subjected to culture on single spore-driven culture condition. However, AfuvipC deletion mutant demonstrated no phenotypic difference from wild type both in point inoculation and streaking cultures. These results indicate that the two methyltransfereases might have a redundant role and could be dispensable in normal culture conditions.
Biological Activities of Wild Sparassis crispa Extracts
Kim, Eun-Jung ; Yoo, Kwan-Hee ; Kim, Yang-Sup ; Seok, Soon-Ja ; Kim, Jun-Ho ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 40~46
DOI : 10.4489/KJM.2015.43.1.40
Physiological activities of solvent extracts of Sparassis crispa were investigated for fibrinolytic, thrombin inhibitory, anti-oxidative and anti-inflammatory activities. The fibrinolytic activity was the highest in ethyl acetate extract (2.03 plasmin units/mL) followed by butanol extract (0.70 plasmin units/mL). The ethyl acetate extract exhibited the highest anti-oxidative activity as assessed by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging rate with a value of 95.94%. The chloroform extract showed thrombin inhibitory activity up to 83.87%. The chloroform extract also showed the highest anti-inflammatory effects on the production of nitric oxide (NO) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. These findings suggest that Sparassis crispa may be a useful material for development of drugs and functional foods.
Isolation and Identification of Yeasts from Wild Flowers in Deogyu Mountain and their Physiological Functionalities
Han, Sang-Min ; Hyun, Se-Hee ; Lee, Jong-Soo ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 47~52
DOI : 10.4489/KJM.2015.43.1.47
Several kinds of yeasts were isolated from wild flowers collected from Muju resort of Deogyu mountain in Korea and identified by comparison of nucleotide sequences of D1/D2 region of 26S rDNA using BLAST. Totally twenty-two strains of eight species were isolated and Cryptococcus magnus (9 strains) and Cryptococcus flavescenes (6 strains) were dominant species. The supernatant and cell-free extracts were prepared and their antioxidant activity, anti-gout xanthine oxidase inhibitory activity and whitening tyrosinase inhibitory activity were investigated. Anti-gout xanthine oxidase inhibitory activities of Sporobolomyces phaffii JS00583 and Rhodotorula graminis JS00581 were 40.4% and 39.1%, respectively and also was 36.1% whitening tyrosinase inhibitory activity in the supernatant of Cryptococcus magnus JS00570.
Undescribed Fungal Species Found in Ulleungdo, Korea
Ahn, Geum Ran ; Kim, Seong Hwan ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 53~57
DOI : 10.4489/KJM.2015.43.1.53
Ulleungdo is a volcanic island inhabited by a variety of animals and plants in an oceanic climate in the East Sea. The presence of filamentous fungi has been rarely reported in Ulleungdo. Thus, in this study some plants in the Nari basin and soils in the Dodong region were sampled. Fungi were isolated from the soil and identified by microscopical and molecular biological methods. Coniothyrium aleuritis, Hypocrea valdunensis, Pestalotiopsis uvicola and P. caudate were identified and found to be undescribed species in Korea.
New Records of Fungi Isolated from Indoor Air of Greenhouse Used for Shiitake Cultivation in Korea
Kwon, Hyuk Woo ; Yun, Yeo Hong ; Kim, Jun Young ; Kim, Seong Hwan ; Ko, Han Kyu ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 58~63
DOI : 10.4489/KJM.2015.43.1.58
Mold contamination is one of the detrimental factors affecting sawdust media-based shiitake cultivation in greenhouses. During mold monitoring of indoor air of greenhouses, several fungi were isolated. Among them, Aspergillus pulverulentus and Cosmospora butyri were found to be new in Korea and Lecanicillium psalliotae and L. antillanum were known in Korea without taxonomic validation. In this study the morphological characteristics and phylogenetic analysis based on the internal transcribed spacer (ITS) rDNA region or
-tubulin gene of the four identified species were described.
Isolation and Diversity of Wild Yeasts from Some Cereals
Han, Sang-Min ; Park, Won-Jong ; Lee, Jong-Soo ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 64~67
DOI : 10.4489/KJM.2015.43.1.64
Several kinds of wild yeasts were isolated and identified from some cereals. A total of twenty six yeast strains were isolated from eleven kinds of cereals. Among twenty six yeast strains, Saccharomyces cerevisiae were five strains and Pseudozyma antarctica were four strains. Five species of Cryptococcus including Cryptococcus magnus were also isolated. Pseudizyma aphidis were isolated from black bean, and Saccharomyces cerevisiae, Cryptococcus flavescens, Cryptococcus magnus and Hannaella zeae were also isolated from glutinous millet.
An Indole Alkaloid from the Fruiting Body of Boletus umbriniporus
Lee, Yoon-Ju ; Hwang, Byung-Soon ; Song, Ja-Gyeong ; Kim, Dae-Won ; Woo, E-Eum ; Lee, In-Kyoung ; Yun, Bong-Sik ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 68~70
DOI : 10.4489/KJM.2015.43.1.68
Mushrooms are valued as a nutritional food and also as an important source of useful medicinal components. They produce various secondary metabolites which have interesting biological activities and unique chemical structures. As part of our ongoing investigation on chemical constituents and bioactive components of Korean native mushrooms, compound 1, an indole alkaloid, was isolated from the fruiting body of Boletus umbriniporus. B. umbriniporus is characterized by its yellow flesh, which changes to pallid blue when exposed to air, and its chemical constituent has not been reported. Chemical structure of compound 1 was determined to be flazin on the basis of ESI-mass,
COSY, HMQC, and HMBC analysis. This compound was isolated from the fruiting body of B. umbriniporus for the first time.
Gibberellins Production and Identification of Endophytic Fungi Isolated from Aquatic Plant in Fresh Water
You, Young-Hyun ; Kang, Sang-Mo ; Choi, Yu-Mi ; Lee, Myung-Chul ; Kim, Jong-Guk ;
The Korean Journal of Mycology, volume 43, issue 1, 2015, Pages 71~76
DOI : 10.4489/KJM.2015.43.1.71
Aquatic plant Hydrocharis dubia (Blume) Backer was collected from the Dalsung wetland in Daegu. Sixteen endophytic fungi with different colony morphologies were isolated from the roots of aquatic plants. Waito-c rice (WR) seedlings were treated with fungal culture filtrates (FCF) for screening plant growth-promoting activity. In the results, HD1008 strain isolated from aquatic plant showed highest plant growth-promoting activity. The FCF of HD1008 strain was analyzed using gas chromatography mass spectrometry (GC/MS) with selected ion monitoring (SIM). Analysis of the FCF of HD1008 strain found that it contained gibberellins (GA) (
, 1.2 ng/100 mL;
, 5 ng/100 mL). Phylogenetic tree of HD1008 strain was constructed by partial internal transcribed spacer (ITS) region and partial beta-tubulin gene sequences. Therefore, we describe HD1008 strain as a new gibberellin-producing Penicillium trzebinskii based on morphological and molecular characteristics.